NEX ROBOTICS FIREBIRD V ATMEGA 2560 Hardware Manual page 98

6.3 Robot control using USB port
Fire Bird V ATMEGA2560 has onboard USB port for direct interface with PC. USB interfacing
is based on FT232 USB to serial converter. For robot control over USB port application, we need
to load "13B_Serial_Communication_USB-RS232.hex" on the robot which is located in the
"Experiments" folder in the documentation CD.
FT232 USB to serial converter can be connected with UART 2 of the ATMEGA2560
microcontroller via Jumper J1. Figure 6.2 shows the correct jumper setting for connecting FT232
with the microcontroller.
Figure 6.2: Jumper setting to enable USB communication
Before using USB port we need to install the driver software for FT232 USB to serial converter.
The software is located in the "Software and Drivers \ CDM 2.06.00 WHQL Certified" folder.
For driver installation process refer to section 6.5.
For robot control over serial port we use Terminal software from NEX Robotics. It is located in
the "Software" folder in the documentation CD. Installation and the use of the terminal software
from NEX Robotics is covered in the section 6.7.
Important:
When using USB port for the communication, for proper operation first turn on the robot
•
then insert the USB cable in the robot. We have to follow this sequence because USB to
serial converter chip is powered by USB. If any fault occurs then turn off the robot and
remove the USB cable and repeat the same procedure.
Make sure that jumper is configured to enable USB communication. Jumpers should be
•
in the position as shown in the Figure 6.2.
© NEX Robotics Pvt. Ltd. and ERTS Lab, CSE, IIT Bombay, INDIA
Fire Bird V ATMEGA2560 Hardware Manual
98